Disconnecting hook



May 20, 1930. F. MARGESON.

DISCONNECTING HOOK 2 Sheets-Sheet 1 Filed July 15, 1929 Inventor %a/ 7a (for? A iiorney F. MARGESON DISCONNECTING HOOK May 20, .1930.

I Filed July 15, 1929 2 Sheets-Sheet 2 Inventor Aiiorhey Patented May 29, 1930 UNITED STATES FRANCIS MARGESON, OF BOLIVAR, NEV YORK DISCONNEGTING HOOK Application filed July 15, 1929. Serial No. 378,527.

The presentinvention relates to a disconnecting hook, and has for its prime object to provide means to adjust the stroke of the pumping jack of an oil well at the power house.

Another very important object of the invention resides in the provision of a pump of this nature, which will take the place of the usual turn buckle and disconnecting 1o hooks now in common use.

A still further very important object of the invention resides in the provision of a disconnecting hook of this nature which is exceedingly simple in its construction, in-

expensive to manufacture, easy to manipulate, thoroughly efficient and reliable in use, and otherwise well adaptedto the purpose for which it is designed.

With the above and numerous other ob- 23 jects in view, as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawings:

Figure 1 is an elevation showing the disconnecting hook in association with the full lines.

Figure 2 is an elevation showing the hook engaging together two full lines.

Figure 3 is a similar view, showing a different adjustment.

Figure 4 is a top plan view of the elongated loop link on the end of the power pull line.

Figure 5 is an elongated detail elevation of the hook, and

Figure 6 is a plan view thereof.

Referring to the drawing in detail, it will been seen that the numeral 5 denotes the usual power pull line, which has secured thereto by a coupling 6, a link 7, formed with an elongated oblong loop 8. The numeral 9 denotes the well rig pull lines which have coupled thereto as at 10, a link 11. Numeral 12 denotes a post rising from the ground and having extending therethrough an elongated shank 14 adjustable by means of the nut 15 threaded thereon and having coupled thereto as at 16, a link 17.

The letter A. denotes generally a hook comprising an elongated shank 18 that is formed atone end with an eye 19 and on the intermediate portion of its bottom edge with a hook 20 and on its top edge with hooks 1, 2, 8, and 4.

The eye 19 is engaged with the link 11. The hook 20 is engageable with the link 17 and the hooks 1, 2, 3, and 4 are engageable with the link 7, two different engagements being shown in Figures 2 and 3 by way of example. This disconnecting hook is designed to shorten or lengthen a pull line, which pumps an oil well. The advantage of this hook is to take the place of the usual turn buckles and disconnecting hooks now in use in practically all fields. Sometimes working valves in an oil well gets some sand or fine substance 1n them, causing the stop ping of the valve, that is preventing the proper working thereof. Thus, by using the hook member 1, the working valve may be operated to jar the standing valve, thus loosening any foreign substance in the valve. In case the pull line contracts in cold weather, hook members 1 and 2 may be used. When the pull line expands, hooks 3 and 1 may be used. In case of the pull line to the well working correctly, then usually hook member 3 is used. The shank 14 and associated parts are used for the purpose of booking off the pull line by engaging hook 20 with the link 17.

It is thought that the construction, operation, utility and advantages of this invention will now be quite apparent to those skilled in this art, without a more detailed description thereof.

The present embodiment of the invention has been disclosed in considerable detail, merely for the purpose of exemplification, since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description.

It will be apparent that changes in the details of construction and in the combination and arrangement of parts may be resorted to Without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

hat is claimed is:

A disconnecting hook structure of the class described comprising an elongated shank having formed on one edge thereof a plurality of spaced hooks, and the other edge thereof with a single hook at a point intermediate the outermost of the first named hooks, and one end of the shank having an eye formed thereon and extending longitudinally therefrom.

In testimony whereof I aifix my signature.

FRANCIS MARGESON. 

